CN114982166B - HARQ feedback method and device and storage medium - Google Patents

HARQ feedback method and device and storage medium Download PDF

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Publication number
CN114982166B
CN114982166B CN202080004057.2A CN202080004057A CN114982166B CN 114982166 B CN114982166 B CN 114982166B CN 202080004057 A CN202080004057 A CN 202080004057A CN 114982166 B CN114982166 B CN 114982166B
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cot
target
time domain
domain position
harq feedback
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CN114982166A (en
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付婷
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosure provides an HARQ feedback method, an apparatus and a storage medium, wherein the HARQ feedback method comprises the following steps: determining whether a target time domain position for transmitting HARQ feedback information is positioned in a first channel occupation duration COT of a target physical downlink shared channel PDSCH transmitted by a base station, and obtaining a first determination result; the HARQ feedback information is HARQ feedback information corresponding to the target PDSCH; and determining a target COT associated with the target time domain position based on the first determination result. In the disclosure, the terminal may determine the target COT associated with the target time domain position based on whether the target time domain position of the HARQ feedback information is located in the first COT where the target PDSCH transmitted by the base station is located, which has high availability.

Description

HARQ feedback method and device and storage medium
Technical Field
The disclosure relates to the field of communication, and in particular relates to an HARQ feedback method and device, and a storage medium.
Background
In unlicensed spectrum, a transmitting end typically needs to monitor a channel, i.e., CCA (Clear Channel Assessment, clear channel detection), before occupying the channel to transmit data. If the transmitting end judges that the channel is idle after CCA is carried out, the transmitting end can occupy the channel to transmit data, the MCOT (Maximum Channel Occupy Time, maximum channel occupation duration) of the transmitting end is agreed by a protocol or configured/indicated by a base station, otherwise, the transmitting end cannot occupy the channel. The above procedure is generally referred to as a mechanism for channel access for LBT (Listen Before Talk ) over unlicensed band.
Depending on the LBT scheme, it can be classified into FBE (Frame-Based Equipment) and LBE (Load-Based Equipment). Where FBE is a channel detection and access mechanism of FFP (Fixed Frame period ).
The base station may configure respective FBE parameters for downlink transmission of the base station and uplink transmission of the terminal, respectively, including, but not limited to, FBE period, offset (offset of a starting subframe for CCA with respect to a subframe numbered 0), idle duration, and the like. In some configurations, the duration of the COT of the FBE configuration of the downlink transmission of the base station may coincide with the duration of the COT of the FBE configuration of the uplink transmission of the UE in the time domain.
In case the base station and the terminal each have FBE configuration and the duration of the COT thereof overlap in the time domain. If the base station schedules the terminal to perform HARQ (Hybrid Automatic Repeat reQuest ) feedback in the overlapping time, the terminal cannot determine whether the HARQ feedback transmission is associated with the FFP configuration of the base station or the FFP configuration of the terminal.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present disclosure provide a HARQ feedback method and apparatus, and a storage medium.
According to a first aspect of embodiments of the present disclosure, there is provided a HARQ feedback method, which is used for a terminal, including:
determining whether a target time domain position for transmitting HARQ feedback information is positioned in a first channel occupation duration COT of a target physical downlink shared channel PDSCH transmitted by a base station, and obtaining a first determination result; the HARQ feedback information is HARQ feedback information corresponding to the target PDSCH;
and determining a target COT associated with the target time domain position based on the first determination result.
Optionally, the determining, based on the first determination result, the target COT associated with the target time domain position includes:
and responding to the first determination result to indicate that the target time domain position is positioned in the first COT, and taking the first COT as the target COT.
Optionally, the determining, based on the first determination result, the target COT associated with the target time domain position includes:
determining whether a second COT and a third COT overlap at the target time domain position after the first determination result indicates that the target time domain position is located at the end time domain position of the first COT, and obtaining a second determination result; the second COT is COT obtained based on the FBE parameters of the frame-based equipment corresponding to downlink transmission by the base station, and the third COT is COT obtained based on the FBE parameters corresponding to uplink transmission by the terminal;
and in response to the second determination result indicating that the second COT and the third COT are overlapped at the target time domain position, taking the second COT or the third COT as the target COT.
Optionally, the taking the second COT or the third COT as the target COT includes:
and taking the second COT or the third COT as the target COT based on the indication of the first signaling sent by the base station.
Optionally, the taking the second COT or the third COT as the target COT includes:
the second or third COT is treated as the target COT based on a predefined setting.
Optionally, the taking the second COT or the third COT as the target COT includes:
taking the second COT or the third COT as the target COT according to the indication of target downlink control information DCI sent by the base station; wherein the target DCI is DCI for scheduling the target PDSCH.
Optionally, the taking the second COT or the third COT as the target COT according to the indication of the downlink control information DCI sent by the base station includes:
and after determining that the target DCI is allowed to indicate the association relationship between the target time domain resource position and the target COT according to the second signaling sent by the base station, taking the second COT or the third COT as the target COT according to the indication of the target DCI.
Optionally, the target PDSCH is a semi-persistent scheduled PDSCH, and the target DCI is used to activate the semi-persistent scheduled target PDSCH.
Optionally, the taking the second COT or the third COT as the target COT includes:
and in response to determining that the starting time of the target time domain position is the same as the starting time of the third COT, taking the third COT as the target COT, and otherwise taking the second COT as the target COT.
According to a second aspect of embodiments of the present disclosure, there is provided an HARQ feedback device for a terminal, including:
the first determining module is configured to determine whether a target time domain position for transmitting the HARQ feedback information is located in a first channel occupation duration COT where a target physical downlink shared channel PDSCH transmitted by the base station is located, so as to obtain a first determining result; the HARQ feedback information is HARQ feedback information corresponding to the target PDSCH;
a second determination module configured to determine a target COT associated with the target time domain position based on the first determination result.
Optionally, the second determining module includes:
a first determination submodule configured to determine the first COT as the target COT in response to the first determination result indicating that the target time-domain position is within the first COT.
Optionally, the second determining module includes:
a second determining submodule configured to determine whether there is overlap between a second COT and a third COT at the target time-domain position to obtain a second determination result in response to the first determination result indicating that the target time-domain position is located after the end time-domain position of the first COT; the second COT is COT obtained based on the FBE parameters of the frame-based equipment corresponding to downlink transmission by the base station, and the third COT is COT obtained based on the FBE parameters corresponding to uplink transmission by the terminal;
a third determination submodule configured to determine the second COT or the third COT as the target COT in response to the second determination result indicating that there is an overlap of the second COT and the third COT at the target time-domain position.
Optionally, the third determining submodule includes:
and a first determining unit configured to take the second or third COT as the target COT based on an instruction of a first signaling transmitted by a base station.
Optionally, the third determining submodule includes:
a second determination unit configured to regard the second or third COT as the target COT based on a predefined setting.
Optionally, the third determining submodule includes:
a third determining unit configured to take the second COT or the third COT as the target COT according to an instruction of target downlink control information DCI sent by a base station; wherein the target DCI is DCI for scheduling the target PDSCH.
Optionally, the third determining unit includes:
and a determining subunit configured to, in response to a second signaling sent according to a base station, determine that the target DCI is allowed to indicate an association between the target time domain resource location and the target COT, and then take the second COT or the third COT as the target COT according to the indication of the target DCI.
Optionally, the target PDSCH is a semi-persistent scheduled PDSCH, and the target DCI is used to activate the semi-persistent scheduled target PDSCH.
Optionally, the third determining submodule includes:
a fourth determining unit configured to, in response to determining that the start time of the target time-domain position is the same as the start time of the third COT, take the third COT as the target COT, and otherwise take the second COT as the target COT.
According to a third aspect of embodiments of the present disclosure, there is provided a computer readable storage medium storing a computer program for executing the HARQ feedback method of any one of the above first aspects.
According to a fourth aspect of embodiments of the present disclosure, there is provided an HARQ feedback device, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the HARQ feedback method of any of the first aspects above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in the embodiment of the disclosure, the terminal may determine the target COT associated with the target time domain position based on whether the target time domain position of the HARQ feedback information is located in the first COT where the target PDSCH transmitted by the base station is located, and the availability is high.
In the embodiment of the disclosure, when the terminal determines that the target time domain position is located in the first COT, the terminal may directly use the first COT as the target COT, send HARQ feedback information at the target time domain position, and need not to perform CCA detection, so that the availability is high.
In the embodiment of the disclosure, when the terminal determines that the target time domain position is located after the end time domain position of the first COT, the terminal may associate the target time domain position to the second COT or the third COT based on whether there is overlap between the second COT and the third COT at the target time domain position, so as to achieve the purpose of determining the target COT associated with the target time domain position, and the availability is high.
In the embodiment of the disclosure, the terminal may associate the target time domain position to the second COT or the third COT according to the indication of the first signaling sent by the base station under the condition that the second COT and the third COT overlap at the target time domain position, so as to achieve the purpose of determining the target COT associated with the target time domain position, and the availability is high.
In the embodiment of the disclosure, the terminal may associate the target time domain position to the second COT or the third COT according to the predefined setting under the condition that the second COT and the third COT overlap at the target time domain position, so as to achieve the purpose of determining the target COT associated with the target time domain position, and the availability is high.
In the embodiment of the disclosure, when the second COT and the third COT overlap in the target time domain position, the terminal may associate the target time domain position to the second COT or the third COT according to the indication of the target DCI sent by the base station, so as to achieve the purpose of determining the target COT associated with the target time domain position, and the availability is high.
In the embodiment of the disclosure, the terminal may associate the target time domain position to the second COT or the third COT according to the target time domain position for sending the HARQ feedback information when the second COT and the third COT overlap at the target time domain position, so as to achieve the purpose of determining the target COT associated with the target time domain position, and the availability is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram illustrating an FBE period configuration in accordance with an exemplary embodiment.
Fig. 2 is a flow chart illustrating a HARQ feedback method according to an exemplary embodiment.
Fig. 3 is a flow chart illustrating another HARQ feedback method according to an exemplary embodiment.
Fig. 4 is a flow chart illustrating another HARQ feedback method according to an exemplary embodiment.
Fig. 5 is a flow chart illustrating another HARQ feedback method according to an exemplary embodiment.
Fig. 6 is a flow chart illustrating another HARQ feedback method according to an example embodiment.
Fig. 7 is a flowchart illustrating another HARQ feedback method according to an exemplary embodiment.
Fig. 8 is a block diagram of a HARQ feedback device according to an example embodiment.
Fig. 9 is a schematic structural diagram of a HARQ feedback device according to an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Before describing the HARQ (Hybrid Automatic Repeat reQuest ) feedback scheme provided in the present disclosure, the LBT method of the FBE in the related art will be described. Referring to fig. 1, in the case where the transmitting end needs to transmit data using an FBE period of 10 ms as an example, channel detection may be performed every 10 ms. And after the channel can be accessed through the CCA, transmitting data in the COT, wherein the maximum duration of data transmission cannot exceed the duration of the MCOT. In addition, in each period, after the MCOT period ends, there is a period of idle duration (idle period) during which the transmitting end cannot transmit data.
An embodiment of the present disclosure provides an HARQ feedback method, which may be used for a terminal, and is shown with reference to fig. 2, fig. 2 is a flowchart of an HARQ feedback method according to an embodiment, where the method may include the following steps:
in step 201, it is determined whether the target time domain position for transmitting the HARQ feedback information is located in the first channel occupation duration COT where the target physical downlink shared channel PDSCH transmitted by the base station is located, so as to obtain a first determination result.
In the embodiment of the present disclosure, the HARQ feedback information is HARQ feedback information corresponding to a target PDSCH (Physical Downlink Shared Channel ), and the base station may instruct the terminal to transmit a target time domain position of the HARQ feedback information through the target PDSCH. The terminal may determine whether the target time domain location is within a first COT where the target PDSCH is located.
In step 202, a target COT associated with the target time domain position is determined based on the first determination result.
In the above embodiment, the terminal may determine the target COT associated with the target time domain position based on whether the target time domain position of the HARQ feedback information is located in the first COT where the target PDSCH transmitted by the base station is located, which has high availability.
The present disclosure proposes a HARQ feedback method, referring to fig. 3, fig. 3 is a flowchart of another HARQ feedback method according to an embodiment, which may include the steps of:
in step 301, the first COT is taken as the target COT in response to the first determination result indicating that the target time domain position is located within the first COT.
In the embodiment of the present disclosure, in the case where the target time domain location at which the HARQ feedback information is transmitted is located within the first COT at which the target PDSCH is located, the terminal may directly use the first COT as the target COT associated with the target time domain location.
Accordingly, the terminal can directly send the HARQ feedback information at the target time domain position without performing CCA detection.
In the above embodiment, when determining that the target time domain position is located in the first COT, the terminal may directly use the first COT as the target COT, and send HARQ feedback information at the target time domain position, without performing CCA detection, and the availability is high.
Those skilled in the art will appreciate that the technical solution of step 301 may be implemented alone or in combination with any other technical solution in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited thereto.
The present disclosure proposes a HARQ feedback method, referring to fig. 4, fig. 4 is a flowchart of another HARQ feedback method according to an embodiment, which may include the steps of:
in step 401, in response to the target time domain position for sending the HARQ feedback information being located after the end time domain position of the first channel occupation duration COT where the target physical downlink shared channel PDSCH transmitted by the base station is located, and the second determination result indicates that there is an overlap between the second COT and the third COT at the target time domain position, the target COT is determined from the second COT or the third COT.
In the embodiment of the present disclosure, after the target time-domain position is located at the end time-domain position of the first COT, that is, the target time-domain position at which the HARQ feedback information is transmitted is not within the first COT, the terminal may determine whether there is an overlap between the second COT and the third COT at the target time-domain position.
The second COT refers to a COT obtained based on an FBE parameter corresponding to downlink transmission by the base station, that is, the second COT is a COT corresponding to the base station, and the third COT refers to a COT obtained based on an FBE parameter corresponding to uplink transmission by the terminal, that is, the third COT is a COT corresponding to the terminal.
In the disclosed embodiments, where there is an overlap of the second and third COTs at the target time-domain location, one of the second or third COTs may be considered as the COT associated with the target time-domain location. I.e. the target time domain position is associated to the corresponding COT of the base station or the corresponding COT of the terminal.
In the above embodiment, when the terminal determines that the target time domain position is located after the end time domain position of the first COT, the terminal may associate the target time domain position to the second COT or the third COT based on whether there is overlap between the second COT and the third COT at the target time domain position, so as to achieve the purpose of determining the target COT associated with the target time domain position, which has high availability.
An embodiment of the present disclosure proposes a HARQ feedback method, referring to fig. 5, fig. 5 is a flowchart of another HARQ feedback method shown in an embodiment, including:
in step 501, in response to the target time domain position for sending the HARQ feedback information being located after the end time domain position of the first channel occupation duration COT where the target physical downlink shared channel PDSCH transmitted by the base station is located, and the second determination result indicates that there is no overlap between the second COT and the third COT at the target time domain position, determining the COT where the target time domain position is located as the target COT.
In one example, the target time domain location is within the second COT, and the terminal may then directly treat the second COT as the target COT.
In another example, the target time domain location is within the third COT, and the terminal may then directly treat the second COT as the target COT.
In the above embodiment, when there is no overlap between the COT corresponding to the base station and the COT corresponding to the terminal in the target time domain position, the corresponding COT may be used as the target COT in which the target time domain position is located, and the availability is high.
An embodiment of the present disclosure proposes a HARQ feedback method, referring to fig. 6, fig. 6 is a flowchart of another HARQ feedback method according to an embodiment, where the method may include the following steps:
in step 601, in response to the first determination result indicating that the target time-domain position is located after the end time-domain position of the first COT and the second determination result indicating that the second COT and the third COT overlap at the target time-domain position, determining that the second COT is the target COT according to a configuration parameter.
The second COT is a COT obtained based on the FBE parameter corresponding to the downlink transmission performed by the base station, that is, the second COT is a COT corresponding to the base station.
In some embodiments of the present disclosure, the configuration parameter may be an indication of first signaling sent by the base station. In the disclosed embodiments, the first signaling may be higher layer signaling including, but not limited to, RRC (Radio Resource Control ) signaling, MAC (Media Access Control Address, media access control address) signaling.
In some embodiments of the present disclosure, the configuration parameter may be a pre-configuration parameter. In the disclosed embodiments, the predefined settings include, but are not limited to, protocol conventions.
In some embodiments of the present disclosure, the configuration parameter may be an indication of target downlink control information DCI, and the second COT or the third COT is taken as the target COT. In the embodiment of the present disclosure, the target DCI (Downlink Control Information ) may be a scheduling DCI for scheduling the target PDSCH. After the target time domain position for transmitting the HARQ feedback information is located at the end time domain position of the first COT where the target PDSCH is located, and when the second COT and the third COT overlap at the target time domain position, the terminal may use the second COT as the target COT according to the indication of the target DCI transmitted by the base station. In the above embodiment, the terminal may determine, according to the second signaling sent by the base station, that the operation target DCI indicates the association relationship between the target time domain position and the target COT, and then, according to the indication of the target DCI, use one of the second COT or the third COT as the target COT, where the availability is high.
In some optional embodiments, in a case where the target PDSCH is a semi-persistent scheduled PDSCH, the target DCI is used to activate the semi-persistent scheduled target PDSCH.
In the above embodiment, the target DCI may also be an activation DCI, which is used to activate the target PDSCH of the semi-persistent scheduling, and the terminal may use, according to the indication of the target DCI, one of the COT corresponding to the base station or the COT corresponding to the terminal as the target COT associated with the target time domain position for transmitting the HARQ feedback information, thereby saving signaling resources of the base station and having high availability.
In some embodiments of the disclosure, the configuration parameter may be a specific time domain position according to a HARQ-ACK PUCCH, and the second COT or the third COT is taken as the target COT. Preferably, if the start time of the channel transmitting the HARQ-ACK information is exactly at the start position of the second COT, it is associated to the second COT, otherwise it is associated to the third COT.
Referring to fig. 7, fig. 7 is a flowchart illustrating another HARQ feedback method according to an embodiment, which may include the steps of:
in step 701, after the first determination result indicates that the target time domain position is located at the end time domain position of the first COT, determining that the third COT is the target COT according to the indication of the first signaling sent by the base station.
The third COT is a COT obtained based on the FBE parameter corresponding to the uplink transmission by the terminal, that is, the third COT is a COT corresponding to the terminal.
In the disclosed embodiments, the first signaling may be higher layer signaling including, but not limited to, RRC (Radio Resource Control ) signaling, MAC (Media Access Control Address, media access control address) signaling.
The embodiment of the disclosure provides an HARQ feedback method, where after a target time domain position where HARQ feedback information is sent is located after an end time domain position of a first COT where a target PDSCH is located, and where a second COT and a third COT overlap at the target time domain position, a terminal may determine, according to a second signaling sent by a base station, that the base station allows the target DCI to indicate an association relationship between the target time domain resource position and the target COT, and then, according to an indication of a target DCI, use one of the second COT or the third COT as the target COT. In the disclosed embodiments, the second signaling includes, but is not limited to, RRC signaling.
In some alternative embodiments, the terminal may also determine whether to take the second or third COT as the target COT according to the target time domain position of transmitting the HARQ feedback information.
In one example, the terminal may set the third COT as the target COT when the start time of the target time domain position is the same as the start time of the third COT, that is, the terminal may set the COT corresponding to the terminal as the target COT when the start time of the target time domain position is different from the start time of the third COT, that is, the second COT corresponding to the base station as the target COT.
In the above embodiment, the terminal may associate the target time domain position to the second COT or the third COT according to the target time domain position for sending the HARQ feedback information when the second COT and the third COT overlap in the target time domain position, so as to achieve the purpose of determining the target COT associated with the target time domain position, and the availability is high.
In the above embodiments, the channel on which the terminal transmits HARQ feedback information may include, but is not limited to, PUCCH (Physical Uplink Control Channel ), or PUSCH (Physical Uplink Shared Channel, physical uplink shared channel).
In some alternative embodiments, when the terminal uses the second COT as the target COT, that is, when the terminal uses the COT corresponding to the base station as the target COT, the terminal may directly send HARQ feedback information at the target time domain position in the second COT, without performing CCA detection.
Alternatively, the base station may stop the downlink transmission during the terminal transmits the HARQ feedback information.
In the case that the terminal uses the third COT as the target COT, that is, in the case that the terminal uses the corresponding COT as the target COT, the terminal may continuously occupy channels at the initial time domain position of the third COT in order to ensure that the channels can be successfully occupied, so that HARQ feedback information can be sent to the base station at the target time domain position. Alternatively, the interval from the start time domain position to the target time domain position of the third COT may be padded by padding signals, so as to ensure that the terminal always occupies the channel before transmitting the HARQ feedback information.
In the above embodiment, after the target time domain position for transmitting the HARQ feedback information is located at the end time domain position of the first COT, and when the second COT and the third COT overlap at the target time domain position, different actions may be performed according to whether the terminal is associated with the COT corresponding to the base station or the COT corresponding to the terminal itself, so that the HARQ feedback information is transmitted to the base station at the target time domain position, which has high availability.
The embodiment of the disclosure provides an HARQ feedback method, and the HARQ feedback scheme provided by the disclosure can also be used in a scene of object direct connection.
The receiving end determines whether the target time domain position for transmitting the HARQ feedback information is located in a first COT where a target channel transmitted by the transmitting end is located. The target channel includes, but is not limited to, a channel indicated by the transmitting end for the receiving end to perform HARQ feedback.
The receiving end may take the first COT as the target COT when determining that the target time domain position is located in the first COT.
Further, the receiving end may take one of the second COT or the third COT as the target COT when it is determined that the target time domain position is located after the end time domain position of the first COT and the second COT and the third COT overlap at the target time domain position. In the object direct connection scenario, the second COT may be a COT corresponding to the transmitting end, and the third COT may be a COT corresponding to the receiving end.
In the embodiment of the disclosure, the receiving end may set the second COT or the third COT as the target COT according to an indication of higher layer signaling of the base station or a predefined setting.
Or the receiving end may take the second COT or the third COT as the target COT according to the scheduling indication information sent by the base station, including but not limited to DCI.
Or the receiving end itself may take the second COT or the third COT as a target COT according to the target time domain position for transmitting the HARQ feedback information.
The receiving end may directly send HARQ feedback information at the target time domain location without performing CCA detection when the second COT is taken as the target COT. Or the terminal may start occupying the channel at the starting time domain position of the third COT under the condition that the third COT is taken as the target COT, thereby ensuring that the HARQ feedback information can be sent at the target time domain position.
In the above embodiment, in the internet of things, in the scenario of direct connection of the things, the terminal may determine, according to whether the target time domain position for transmitting the HARQ feedback information is located in the first COT where the target channel is located, the target COT associated with the target time domain position according to the situation, so that the HARQ feedback information is transmitted, and the availability is high.
Corresponding to the foregoing embodiment of the application function implementation method, the present disclosure further provides an embodiment of the application function implementation apparatus.
Referring to fig. 8, fig. 8 is a block diagram of an HARQ feedback device for a terminal according to an exemplary embodiment, including:
a first determining module 810, configured to determine whether a target time domain position for transmitting HARQ feedback information is located in a first channel occupation duration COT where a target physical downlink shared channel PDSCH transmitted by a base station is located, to obtain a first determination result; the HARQ feedback information is HARQ feedback information corresponding to the target PDSCH;
a second determining module 820 is configured to determine a target COT associated with the target time domain position based on the first determination result.
Optionally, the second determining module includes:
a first determination submodule configured to determine the first COT as the target COT in response to the first determination result indicating that the target time-domain position is within the first COT.
Optionally, the second determining module includes:
a second determining submodule configured to determine whether there is overlap between a second COT and a third COT at the target time-domain position to obtain a second determination result in response to the first determination result indicating that the target time-domain position is located after the end time-domain position of the first COT; the second COT is COT obtained based on the FBE parameters of the frame-based equipment corresponding to downlink transmission by the base station, and the third COT is COT obtained based on the FBE parameters corresponding to uplink transmission by the terminal;
a third determination submodule configured to determine the second COT or the third COT as the target COT in response to the second determination result indicating that there is an overlap of the second COT and the third COT at the target time-domain position.
Optionally, the third determining submodule includes:
and a first determining unit configured to take the second or third COT as the target COT based on an instruction of a first signaling transmitted by a base station.
Optionally, the third determining submodule includes:
a second determination unit configured to regard the second or third COT as the target COT based on a predefined setting.
Optionally, the third determining submodule includes:
a third determining unit configured to take the second COT or the third COT as the target COT according to an instruction of target downlink control information DCI sent by a base station; wherein the target DCI is DCI for scheduling the target PDSCH.
Optionally, the third determining unit includes:
and a determining subunit configured to, in response to a second signaling sent according to a base station, determine that the target DCI is allowed to indicate an association between the target time domain resource location and the target COT, and then take the second COT or the third COT as the target COT according to the indication of the target DCI.
Optionally, the target PDSCH is a semi-persistent scheduled PDSCH, and the target DCI is used to activate the semi-persistent scheduled target PDSCH.
Optionally, the third determining submodule includes:
a fourth determining unit configured to, in response to determining that the start time of the target time-domain position is the same as the start time of the third COT, take the third COT as the target COT, and otherwise take the second COT as the target COT.
For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements described above as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Accordingly, the present disclosure also provides a computer-readable storage medium storing a computer program for executing the HARQ feedback method described above for any one of the terminal sides.
Correspondingly, the disclosure also provides an HARQ feedback device, which comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the HARQ feedback method described in any one of the above terminal sides.
Fig. 9 is a block diagram of an electronic device 900, according to an example embodiment. For example, the electronic device 900 may be a mobile phone, a tablet computer, an electronic book reader, a multimedia playing device, a wearable device, a vehicle-mounted terminal, ipad, a smart television, etc.
Referring to fig. 9, an electronic device 900 may include one or more of the following components: a processing component 902, a memory 904, a power component 906, a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 916, and a communication component 918.
The processing component 902 generally controls overall operation of the electronic device 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to perform all or part of the steps of the HARQ feedback method described above. Further, the processing component 902 can include one or more modules that facilitate interaction between the processing component 902 and other components. For example, the processing component 902 can include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902. As another example, the processing component 902 may read executable instructions from a memory to implement the steps of one HARQ feedback method provided by the above embodiments.
The memory 904 is configured to store various types of data to support operations at the electronic device 900. Examples of such data include instructions for any application or method operating on the electronic device 900, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 904 may be implemented by any type of volatile or nonvolatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 906 provides power to the various components of the electronic device 900. Power supply components 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for electronic device 900.
The multimedia component 908 comprises a display screen between the electronic device 900 and the user that provides an output interface. In some embodiments, the multimedia component 908 includes a front-facing camera and/or a rear-facing camera. When the electronic device 900 is in an operational mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 910 is configured to output and/or input audio signals. For example, the audio component 910 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 900 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 904 or transmitted via the communication component 918. In some embodiments, the audio component 910 further includes a speaker for outputting audio signals.
The I/O interface 912 provides an interface between the processing component 902 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 916 includes one or more sensors for providing status assessment of various aspects of the electronic device 900. For example, the sensor assembly 916 may detect an on/off state of the electronic device 900, a relative positioning of the components, such as a display and keypad of the electronic device 900, the sensor assembly 916 may also detect a change in position of the electronic device 900 or a component of the electronic device 900, the presence or absence of a user's contact with the electronic device 900, an orientation or acceleration/deceleration of the electronic device 900, and a change in temperature of the electronic device 900. The sensor assembly 916 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 916 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 916 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 918 is configured to facilitate communication between the electronic device 900 and other devices in a wired or wireless manner. The electronic device 900 may access a wireless network based on a communication standard, such as Wi-Fi,2G,3G,4G,5G, or 6G, or a combination thereof. In one exemplary embodiment, the communication component 918 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 918 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for performing the HARQ feedback method described above.
In an exemplary embodiment, a non-transitory machine-readable storage medium is also provided, such as a memory 904 comprising instructions executable by the processor 920 of the electronic device 900 to perform the HARQ feedback method described above. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (11)

1. A HARQ feedback method, wherein the method is used for a terminal, and comprises:
determining whether a target time domain position for transmitting HARQ feedback information is positioned in a first channel occupation duration COT of a target physical downlink shared channel PDSCH transmitted by a base station, and obtaining a first determination result; the HARQ feedback information is HARQ feedback information corresponding to the target PDSCH;
determining a target COT associated with the target time domain position based on the first determination result;
wherein the determining, based on the first determination result, the target COT associated with the target time domain position includes:
responsive to the first determination indicating that the target time-domain position is located after the ending time-domain position of the first COT, taking a second COT or a third COT as the target COT; the second COT is COT obtained based on the FBE parameters of the frame-based equipment corresponding to downlink transmission by the base station, and the third COT is COT obtained based on the FBE parameters corresponding to uplink transmission by the terminal; wherein the second COT and the third COT overlap at the target time domain location.
2. The method of claim 1, wherein the determining the target COT associated with the target time domain location based on the first determination result comprises:
and responding to the first determination result to indicate that the target time domain position is positioned in the first COT, and taking the first COT as the target COT.
3. The method of claim 1, wherein the regarding the second COT or the third COT as the target COT comprises:
and taking the second COT or the third COT as the target COT based on the indication of the first signaling sent by the base station.
4. The method of claim 1, wherein the regarding the second COT or the third COT as the target COT comprises:
the second or third COT is treated as the target COT based on a predefined setting.
5. The method of claim 1, wherein the regarding the second COT or the third COT as the target COT comprises:
taking the second COT or the third COT as the target COT according to the indication of target downlink control information DCI sent by the base station; wherein the target DCI is DCI for scheduling the target PDSCH.
6. The method of claim 5, wherein the taking the second COT or the third COT as the target COT according to the indication of the target downlink control information DCI sent by the base station comprises:
and after determining that the target DCI is allowed to indicate the association relationship between the target time domain resource position and the target COT according to the second signaling sent by the base station, taking the second COT or the third COT as the target COT according to the indication of the target DCI.
7. The method of claim 5, wherein the target PDSCH is a semi-persistent scheduled PDSCH and the target DCI is used to activate the semi-persistent scheduled target PDSCH.
8. The method of claim 1, wherein the regarding the second COT or the third COT as the target COT comprises:
and in response to determining that the starting time of the target time domain position is the same as the starting time of the third COT, taking the third COT as the target COT, and otherwise taking the second COT as the target COT.
9. An HARQ feedback device, characterized in that the device is used for a terminal, and comprises:
the first determining module is configured to determine whether a target time domain position for transmitting the HARQ feedback information is located in a first channel occupation duration COT where a target physical downlink shared channel PDSCH transmitted by the base station is located, so as to obtain a first determining result; the HARQ feedback information is HARQ feedback information corresponding to the target PDSCH;
a second determining module configured to determine a target COT associated with the target time domain position based on the first determination result;
the second determination module is further configured to:
responsive to the first determination indicating that the target time-domain position is located after the ending time-domain position of the first COT, taking a second COT or a third COT as the target COT; the second COT is COT obtained based on the FBE parameters of the frame-based equipment corresponding to downlink transmission by the base station, and the third COT is COT obtained based on the FBE parameters corresponding to uplink transmission by the terminal; wherein the second COT and the third COT overlap at the target time domain location.
10. A computer readable storage medium, characterized in that the storage medium stores a computer program for executing the HARQ feedback method of any of the preceding claims 1-8.
11. A HARQ feedback device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured for performing the HARQ feedback method of any of the above claims 1-8.
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